Machine Learning and AI Engineer - London
Reflexivity6 months ago
London, United KingdomSenior
Responsibilities
- Design, fine-tune, and deploy ML and LLM-driven systems used in production by professional investors.
- Build and maintain inference pipelines that are fast, observable, and reliable.
- Integrate OpenAI, Gemini, and Anthropic models into reasoning and knowledge systems.
- Work closely with backend engineers to productionize models in Golang-based services.
- Improve signal quality, not just model accuracy.
- Review code and designs with a bias toward long-term maintainability.
Requirements
- 5 plus years building ML or applied AI systems in production.
- Startup experience working on a core product, not a side project.
- Strong Python skills and experience integrating with backend systems.
- Hands-on experience with AI-assisted coding tools like Cursor or Claude Code.
- Fintech experience or strong personal investment background.
- Comfortable owning outcomes, not just tasks.
Benefits
- Direct influence on how professional investors make decisions.
- Real ownership and technical autonomy.
- Senior peers who care about quality and outcomes.